Taxi-hailing app Uber and India’s largest mobile operator Bharti Airtel today announced a strategic partnership whereby the operator will provide the 4G connectivity underpinning free in-car Wi-Fi,  as well as enable users to pay using its mobile wallet.

Uber said it will start with free Wi-Fi in its vehicles in Mumbai, with plans to roll out across India in the future.

The operator said it is Uber’s official telecoms partner across India, adding that the tie-up makes Uber the first technology platform to officially launch Airtel Money, its wallet service.

“We are excited that Uber has chosen Airtel to fulfill its telecoms needs and look forward to supporting the company’s rapid growth across India”, said Srini Gopalan, director of Airtel’s consumer business.

As part of this alliance, Uber will offer exclusive promotions and discounts to Airtel customers, including INR500 ($7.65) off their first ride when using Airtel Money.

The announcement comes just a day after Tata Group’s investment fund said it plans to make a “significant investment” in Uber, which recently committed to investing $1 billion in the Indian market.

Tata and Uber declined to reveal the size of the investment, but the Financial Times, citing a source familiar with the deal, reported it as close to $100 million.